A route display device is provided. The device includes an acquirer installed in a movable body and configured to acquire a position and a direction of the movable body. The device also includes a route memory configured to store a route with a plurality of waypoints. The device also includes a display unit including a display screen having a linear route display section and configured to linearly display the route in a vertical axis of the linear route display section and positional relation of either one of the movable body and one or more targets with respect to the route in left-and-right directions of the route in a horizontal axis of the linear route display section. The device also includes a display controller configured to control a display position of either one of the movable body and the target with respect to the route.